Preterm labor or braxton hicks?

Jazzmine • Baby girl born Jan 3rd 2020 💕

First baby. 34w 3d

Since the morning I’ve been grumpy, nauseous, stomach cramps, pressure in my pelvis and back pain.

I don’t know what braxton hicks is supposed to feel like? I feel a tightening of my stomach but on the inside not the out?

I overall feel really uncomfortable & I did throw up once.

I hate wasting hours in the ER.